Res Gel cleaner is engineered to give your glass the best clean on the market. This natural, clay-based formula easily removes resin and tar from your glass bongs, rigs, bowls, stems, steamrollers, tools, grinders, jars, hands and even clothes. Pair with Resolution Caps to brilliantly maintain the entire life-cycle of your prized glass. Product Features: Patented formula Free of abrasive salts Low in volatile organic compounds Safer for your glass Environmentally-friendly Shake-a-Bag resealable cleaning pouch Not for use with acrylics and other soft plastics